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Apparatus and method of image synthesization

  • US 6,100,895 A
  • Filed: 02/23/1999
  • Issued: 08/08/2000
  • Est. Priority Date: 12/01/1994
  • Status: Expired due to Term
First Claim
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1. An image synthesizing apparatus for displaying an image on a display by perspectively transforming a three-dimensional object onto a view screen of a view coordinate system, said apparatus comprising:

  • spotlight information generating means for generating spotlight information for brightness to perform a spotlight display;

    brightness information converting means for converting brightness information by using said spotlight information for brightness from said spotlight information generating means;

    shading computation means for determining color information to be displayed in each pixel on said display by using brightness information converted by said brightness information converting means and color information of an object;

    depth cueing computation means for performing depth cueing computation relative to said color information inputted from said shading computation means by using depth information; and

    a field buffer unit for storing information including at least one of said color information of said object, information used to generate said color information, brightness information and depth information in a storage area corresponding to each pixel in said display,wherein said spotlight information generating means outputs at least one of said spotlight information for brightness and said spotlight information for depth for each pixel in synchronization with a timing at which said stored information for each pixel is output from said field buffer unit and also generates character screen information for displaying a character image on said display.

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